A protester sits as he blocks the main street to the financial Central district, outside the government headquarters in Hong Kong

A protester sits as he blocks the main street to the financial Central district, outside the government headquarters in Hong Kong

A protester sits as he blocks the main street to the financial Central district, outside the government headquarters in Hong Kong, September 29, 2014. Riot police advanced on Hong Kong democracy protesters in the early hours of Monday, firing volleys of tear gas that sent some fleeing as others erected barricades to block the security forces amid chaotic scenes in the former British colony. REUTERS/Carlos Barria (CHINA – Tags: CIVIL UNREST POLITICS)